Hi, my solar installation isn’t properly earthed and I get a shock during the daytime if I touch any part of my garage metal installation ( panels installed on my garage roof) including the metal tracks that my garage door runs in . 
 

what is the process for earthing my panels if I were to do this myself 

Normally, you should not get shocked even if the panels are not earthed.

 

I think you have a different problem? Maybe related to E/N bonding and a relay when on solar, but will depend on how your inverter works, it may have it built in or in may need to be done externaly? 

 

Earthing the panels will only assist in directing induced (By lightning) / Leakage (From faulty panels or Faulty/Damaged cabling to the MPPT) or a lightning strike away from the inverter and into the ground. This should be for when there is a problem, and normally there shold be no leakage??

It would probably be best to get your installer to come out and investigate what the cause is ASAP.

If your panels are connected in a string with VOC voltages of 450 volts, you could be dead before you know you had been shocked?

Please get an electrician to investigate.